[INFO] fetching crate kora-observability 0.2.0...
[INFO] testing kora-observability-0.2.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate kora-observability 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate kora-observability 0.2.0
[INFO] finished tweaking crates.io crate kora-observability 0.2.0
[INFO] tweaked toml for crates.io crate kora-observability 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kora-observability 0.2.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kora-observability 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project-lite v0.2.17
[INFO] [stderr]   Downloaded tracing-attributes v0.1.31
[INFO] [stderr]   Downloaded thiserror-impl v2.0.18
[INFO] [stderr]   Downloaded thiserror v2.0.18
[INFO] [stderr]   Downloaded tracing-core v0.1.36
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.15
[INFO] [stderr]   Downloaded tracing v0.1.44
[INFO] [stderr]   Downloaded libc v0.2.182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d037f525e9d97e255ae367446fc8851e182086ab396d4f4cec4929061506003c
[INFO] running `Command { std: "docker" "start" "-a" "d037f525e9d97e255ae367446fc8851e182086ab396d4f4cec4929061506003c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d037f525e9d97e255ae367446fc8851e182086ab396d4f4cec4929061506003c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d037f525e9d97e255ae367446fc8851e182086ab396d4f4cec4929061506003c", kill_on_drop: false }`
[INFO] [stdout] d037f525e9d97e255ae367446fc8851e182086ab396d4f4cec4929061506003c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 647b5ee088b235660c27e65a72bca8efab97b0111ac089514417fb56223a87f3
[INFO] running `Command { std: "docker" "start" "-a" "647b5ee088b235660c27e65a72bca8efab97b0111ac089514417fb56223a87f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling kora-observability v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.23s
[INFO] running `Command { std: "docker" "inspect" "647b5ee088b235660c27e65a72bca8efab97b0111ac089514417fb56223a87f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647b5ee088b235660c27e65a72bca8efab97b0111ac089514417fb56223a87f3", kill_on_drop: false }`
[INFO] [stdout] 647b5ee088b235660c27e65a72bca8efab97b0111ac089514417fb56223a87f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b940899f482972084fdf591593999352e7fc9c243799268f0184268d910504ee
[INFO] running `Command { std: "docker" "start" "-a" "b940899f482972084fdf591593999352e7fc9c243799268f0184268d910504ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling kora-observability v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "b940899f482972084fdf591593999352e7fc9c243799268f0184268d910504ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b940899f482972084fdf591593999352e7fc9c243799268f0184268d910504ee", kill_on_drop: false }`
[INFO] [stdout] b940899f482972084fdf591593999352e7fc9c243799268f0184268d910504ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c4d5a9d1b851491a4abfe840b42732a85774ed5d9dd21338a8926a9270db5c3
[INFO] running `Command { std: "docker" "start" "-a" "8c4d5a9d1b851491a4abfe840b42732a85774ed5d9dd21338a8926a9270db5c3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kora_observability-f61a20f449b6e441)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test sketch::tests::test_basic_counting ... ok
[INFO] [stdout] test sketch::tests::test_decay ... ok
[INFO] [stdout] test sketch::tests::test_different_keys_distinct ... ok
[INFO] [stdout] test sketch::tests::test_unseen_key ... ok
[INFO] [stdout] test sketch::tests::test_hot_key_detection ... ok
[INFO] [stdout] test histogram::tests::test_out_of_bounds_cmd_id ... ok
[INFO] [stdout] test histogram::tests::test_record_and_percentile ... ok
[INFO] [stdout] test sketch::tests::test_reset ... ok
[INFO] [stdout] test prometheus::tests::test_format_metrics_basic ... ok
[INFO] [stdout] test prometheus::tests::test_format_metrics_empty ... ok
[INFO] [stdout] test sketch::tests::test_overestimation_not_underestimation ... ok
[INFO] [stdout] test trie::tests::test_reset ... ok
[INFO] [stdout] test histogram::tests::test_empty_percentile ... ok
[INFO] [stdout] test stats::tests::test_snapshot_merge ... ok
[INFO] [stdout] test trie::tests::test_negative_delta ... ok
[INFO] [stdout] test histogram::tests::test_clamp_values ... ok
[INFO] [stdout] test trie::tests::test_top_prefixes ... ok
[INFO] [stdout] test histogram::tests::test_reset ... ok
[INFO] [stdout] test stats::tests::test_decay_and_reset ... ok
[INFO] [stdout] test prometheus::tests::test_format_metrics_with_histograms ... ok
[INFO] [stdout] test stats::tests::test_hot_key_tracking ... ok
[INFO] [stdout] test trie::tests::test_track_and_query ... ok
[INFO] [stdout] test histogram::tests::test_concurrent_recording ... ok
[INFO] [stdout] test stats::tests::test_record_command ... ok
[INFO] [stdout] test trie::tests::test_unknown_prefix ... ok
[INFO] [stdout] test trie::tests::test_concurrent_tracking ... ok
[INFO] [stdout] test stats::tests::test_command_timer ... ok
[INFO] [stdout] test stats::tests::test_snapshot ... ok
[INFO] [stdout] test stats::tests::test_concurrent_recording ... ok
[INFO] [stdout] test stats::tests::test_key_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kora_observability
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c4d5a9d1b851491a4abfe840b42732a85774ed5d9dd21338a8926a9270db5c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4d5a9d1b851491a4abfe840b42732a85774ed5d9dd21338a8926a9270db5c3", kill_on_drop: false }`
[INFO] [stdout] 8c4d5a9d1b851491a4abfe840b42732a85774ed5d9dd21338a8926a9270db5c3
